How to execute junit test query for a table(User) without actually modifying data in the table

i have a unit test query in java that modifies data in a table user(name,id) and the sql takes a name and an id as parameter, it modifies the name.however i just want to know if it is possible to run my junit query if modification is successful or not without actually changing the data(name) in the table?

Thanks in advance.

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